1 files changed, 82 insertions, 0 deletions
diff --git a/bayrate/game.cpp b/bayrate/game.cpp
new file mode 100644
index 0000000..e320a6a
--- /dev/null
+++ b/bayrate/game.cpp
@@ -0,0 +1,82 @@
+/*************************************************************************************
+
+	Copyright 2010 Philip Waldron
+	
+    This file is part of BayRate.
+
+    BayRate is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    BayRate is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with BayRate.  If not, see <http://www.gnu.org/licenses/>.
+    
+***************************************************************************************/
+
+#include <iostream>
+#include "game.h"
+
+using namespace std;
+
+game::game(void)
+{
+}
+
+game::~game(void)
+{
+}
+
+/****************************************************************
+
+calc_handicapeqv ()
+
+Calculates the equivalent rating difference for the handicap/komi
+conditions of this game.
+
+*****************************************************************/
+void game::calc_handicapeqv() {
+	if (handicap == 0) {
+		handicapeqv = 0.580 - 0.0757 * komi;
+		sigma_px = 1.0649 - 0.0021976 * komi + 0.00014984 * komi * komi;
+	}
+	else if (handicap == 1) {
+		handicapeqv = 0.580 - 0.0757 * (komi);
+		sigma_px = 1.0649 - 0.0021976 * (komi) + 0.00014984 * (komi) * (komi);
+	}
+	else {
+		handicapeqv = handicap - 0.0757*komi;
+		sigma_px = -0.0035169 * komi;		
+		switch (handicap) {
+			case 2:
+				sigma_px += 1.13672;
+				break;
+			case 3: 
+				sigma_px += 1.18795;
+				break;
+			case 4:
+				sigma_px += 1.22841;
+				break;
+			case 5:
+				sigma_px += 1.27457;
+				break;
+			case 6:
+				sigma_px += 1.31978;
+				break;
+			case 7:
+				sigma_px += 1.35881;
+				break;
+			case 8:
+				sigma_px += 1.39782;
+				break;
+			case 9:
+				sigma_px += 1.43614;
+				break;	
+		}	
+	}
+}